The Stargazer Backplane was an 8 socket RC2014 backplane module, originally inteded for Z80 based PCs.
It features 40 parallel pin connections for the 8 card slots.
The Stargazer Backplane also featured a USB-PD compatible USB-C module to provide up 5V/3A for use by the attached cards.
The following pinout was used for the Stargazer Backplane:
|Pin Number||RC2014 Name||Anachro Stargazer Name||Notes|
|8||A09||CARD8-GO||This was actually a mistake. I only needed 7 select lines, but had already soldered the following SPI pins.|
|13||A03||RESERVED||Not used by the Stargazer|
|14||A02||RESERVED||Not used by the Stargazer|
|15||A01||RESERVED||Not used by the Stargazer|
|16||A00||RESERVED||Not used by the Stargazer|
|19||M1||3v3||This was used to supply power to the keyboard from the CPU|
|33||D6||SERIAL2-TX||This was the Keyboard Serial Port|
|34||D7||SERIAL2-RX||This was the Keyboard Serial Port|
|35||Tx||SERIAL1-TX||This was the Display Serial Port|
|36||Rx||SERIAL1-RX||This was the Display Serial Port|
|37||USR1||SWDIO-7||This was used for the Keyboard SWD|
|38||USR2||SWCLK-7||This was used for the Keyboard SWD|